croak 2 is available on aminet and seems to be a fix of croak for enhanced amiga...so whdload may not be needed..

EXCITING NEW FEATURES IN VERSION 2
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* NTSC COMPATIBILITY. Croak II will open a cropped screen with a mild
overscan on an American machine. PAL users still get the full 256 lines.

Note: if for some reason Croak fails to detect an NTSC machine, NTSC mode
can be forced by adding "N" as a command-line parameter (ie: run
Croak by typing "CROAK N"). PAL mode can be forced with "CROAK P".

* KEYBOARD CONTROL. Several combinations of joystick and keyboard control
for the two player game are selectable on the title screen. In a one frog
game, all control options are available simultaneously.

* MAGIC BUTTERFLIES. These occasionally flutter down the screen, and do
strange things when caught. You will have to experiment to find out which
colour butterfly does what (there are a couple of nasty ones).

* You can elect to begin the game on any of the first four levels.

* The two player game has been revamped into a more fun sudden-death format.
When one frog is completely dead, the game continues only until the second
player has beaten his score, or dies also.